SOLUTION: A scientist needs 5L of
12% solution. She has
on 10% and 17%
solution. How much of
each does she need?
Algebra.Com
Question 350685: A scientist needs 5L of
12% solution. She has
on 10% and 17%
solution. How much of
each does she need?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let be the amount of 10% solution and the amount of 17%
solution.
Volume equation:
1.
Concentration equation:
2.
Multiply eq. 1 by -10 and add it to eq. 2,
liters
Then from eq. 1,
liters
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